Modeling of gear drive system with cracks
The centralized parameter method is used to establish the dynamic model of gear transmission system.This method has a small amount […]
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Test device and system for vibration characteristics of planetary gear drive system
Taking single-stage planetary gear drive as test object, vibration characteristics test is carried out on the special test bench for
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Dynamic Model of Involute Spur Gear Drive System Fixed Shaft Gear Drive System
The bearings and gears are simplified as concentrated mass points and the rolling bearings are simplified as isotropic elastic supports.A
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Calculation of Rolling Point Position of Modified Helical Gear
The key to calculate the impact force of rodent is to accurately locate the rodent point.Based on the position of
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Data Processing Method for Strain Signal of Involute Spur Gear Drive System
1.The cut-off frequency of low-pass filtering for strain test data is 3kHz of sampling frequency of dynamic strain gauge. 2.As
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Effect of Gear Modification Coefficient on Gear Slip Rate
To analyze the influence of gear displacement coefficient, it should be divided into equal displacement, unequal positive displacement and unequal
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Comparative analysis of torsional shear stress of involute spur gear
According to the test results of torsional shear strain of drive shaft, the torsional shear stress is calculated by formula
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Optimized case of spiral bevel gear
1. Forms of Failure A hypoid gear pair is used to match medium truck, medium bus, medium empty cabinet tractor
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Effect of Helical Bevel Gear Cutter Modification on Tooth Root Bending Stress
In order to improve the bending strength of the small gear root, the heavy contact area is usually designed to
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Optimization of Spiral Bevel Gear Based on Tooth Height Factor
The tooth height coefficient of hypoid gear pair mainly includes working tooth height coefficient and tooth crest height coefficient, which
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Data Processing Method for Displacement Signal of Involute Spur Gear Drive System
The transverse displacement test principle of the drive shaft is shown in the figure.O-point is the center position of the
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Optimization of fatigue carrying capacity of Spiral bevel gear pair
Spiral bevel gear pair is the main part affecting the performance of axle and vehicle. It is widely used because
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Comparison and analysis of vibration and displacement of involute spur gear drive
According to the test results of transverse vibration displacement of transmission, the displacement of axle in test direction is calculated
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Effect of Gear Modulus and Pressure Angle on Gear Slip Rate
Figure 1 shows the variation trend of sliding rate with gear modulus in standard drives with the number of teeth
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Comparison and analysis of acceleration of involute spur gear drive
For acceleration, the main reasons for errors between simulation results and test results are as follows: 1.The parameters such as
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Comparison and analysis of acceleration of involute spur gear drive system
Torsional angular acceleration of gears 1 and 4 can be obtained by substituting acceleration test results of each gear into
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Data Processing for Nonlinear Dynamic Acceleration Signal of Involute Spur Gear Drive System
1.The acceleration test signal is filtered with low-pass filter whose cut-off frequency is 10kHz, the highest response frequency of the
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Verification of Involute Harmonic Gear Flexible Wheel Finite Element Model
In order to verify the validity of the solid element finite element model in this paper, the stress results of
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Selection of Blank for Helical Bevel Gear and Determination of Size and Accuracy
Blank type determination: In general, 20GrMnTi alloy steel is used for driving axle gears of automobiles and carburized and quenched.CA1092
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Operating conditions and performance requirements of helical bevel gears
Spiral bevel gears transmit power and change speed during working process. Rolling and sliding exist between the meshing tooth surfaces
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Contact relationship and stress distribution of flexible ring gear of Involute Harmonic Gear
Flexible ring gear is a spur cylindrical external gear, and the ring gear after assembly deformation presents straight bus deformation
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Main functions of helical bevel gears in automobiles
1.Transfer the power output from the engine to the driving wheels via the transmission and the main drive. 2.Change the
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Vibration characteristics test of fixed-shaft gear drive system
Vibration characteristics of two-stage fixed-shaft gear drive system were tested on a dynamic simulation test bench in the Key Laboratory
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Calculation Method of Rolling Impact Force of Modified Helical Gear Based on Contact Analysis of Tooth Bearing
Calculation Method of Rolling Impact Force of Modified Helical Gear Based on Contact Analysis of Tooth Bearing Rolling impact can
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Nonlinear dynamic engagement model of planetary gear drive
For involute spur fixed-shaft gear drive and planetary gear drive respectively, a non-linear dynamic engagement model including dynamic backlash and
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Involute Harmonic Gear Flexible Gear Profile Parameters
1. Basic profile parameters and definitions Taking the involute profile as an example, the figure is an illustration of the
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Nonlinear dynamic backlash and meshing stiffness of sun gear
The analysis process of the dynamic backlash of the outer meshing pair composed of the sun wheel and the star
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The dynamic boundary condition of the modification area of involute spur gear
If there is tooth profile modification, the dynamic boundary condition of the modification area should be added on the basis
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Centroid Position Vector and Engaging Force of Gear Pair
The dynamic center distance of a gear pair at any time is the modulus of the difference between the vector
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Grinding and centering of double gear pairs
Centering of grinding teeth is the final procedure to ensure the accuracy of angular position of gears. Gear alignment accuracy
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Maximum circumferential stress of ring gear considering the influence of gear teeth
1. Maximum circumferential stress of ring gear in design specification Considering the influence of tooth parameters, load distortion of flexible
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Current problems in the study of gear drive system dynamics
After nearly a hundred years of continuous exploration and research, the dynamics of gear transmission system has developed into a
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Operation monitoring of wind power gearbox
The performance of the wind power system depends to a certain extent on the operation of the wind power gearbox.
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Engaging position of involute spur gear at any engagement teeth
In order to obtain the dynamic engagement stiffness in the process of gear transmission, besides determining the engagement positions, the
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Rolling impact calculation conclusions for modified helical gears
(1) After tooth surface modification, under a small load, the clearance between the teeth of the latter pair is sufficient
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Example Analysis of Rolling Impact of Helical Gear
Figure 1 shows the calculation results of the load-dependent position of the rodent points on the standard and modified tooth
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Nonlinear dynamic meshing model of planetary gear drive
For the fixed shaft gear drive, the design parameters of each gear pair are different, the period of meshing stiffness
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Rolling impact calculation of helical gear
Based on the proposed calculation method of meshing impact force, the optimum profile design of small gear tooth surface with
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Assembly combination of double gear pairs
(1) The large gear is heated in the heating furnace. The heating temperature is controlled at 120 C for 3
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Centroid Position Vector of Gear Pair and Action Direction of Engaging Force
At present, the meshing force of gear in most models always follows the theoretical direction of meshing line, ignoring the
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Aperture circumferential stress in ring gear ring theory
Flexible wheels are subject to alternating stress with an amplitude twice that of assembly stress. In the structural analysis of
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Solution of Rolling Point Position of Tooth Face without Edge Contact of Helical Gear
When TE is greater than LTE at small wheel angle_1A under small load, it means that the clearance between teeth
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Development of Dynamic Gear Profile Modification at China and Abroad
With the increase of speed of gear transmission system, more and more attention has been paid to the research of
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Current situation of profile modification of involute spur gear drive system at China and abroad
Abroad, it is first pointed out that the load of the gear changes in a stepped manner. This method can
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Application of Bearings in Fan Gearbox
Bearing is a key part in the gear box, if there is a problem with the bearing, the gear box
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Solution to Nonlinear Vibration of Spur Gear Drive System
The experimental research shows that the gear transmission system shows obvious non-linear vibration characteristics, and the traditional linear model can
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Engaging position of involute spur gear at any engagement teeth
The engagement position of individual gear teeth during gear transmission can be determined by analysis.In order to ensure the continuity
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An example analysis of dynamic meshing stiffness of involute spur gear transmission system
The engagement stiffness of the gear pair is calculated by applying the rotating speed of 2000r / min on the
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Maximum Assembly Stress of Flexible Wheel for Involute Harmonic Gear
Harmonic gear reducer is widely used in robotics, aerospace and other fields due to its high transmission ratio, high load-carrying
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Interaction force between cross-torsion-pendulum coupling gear pairs in involute spur gear drive
Most gear dynamic models assume that the meshing force is evenly distributed along the tooth width direction, but during actual
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Rolling impact mechanism of modified helical gear
Under ideal conditions, the normal line of the standard involute tooth surface follows the direction of the theoretical engagement line
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Effect of speed change on engagement position of fixed-shaft gear drive
It is assumed that the centre of both gears is rigidly supported.In the meshing state of tooth surface, the relationship
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Profile modification of involute spur gear drive system
Gear modification is a key technology to reduce vibration, noise and improve reliability of gear transmission system.Since the tooth profile
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Fan gear box lubrication
Lubrication of gear box is very important to the operation of gear box, especially the position of bearings, gear meshing
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Nonlinear time-varying model of gear transmission system
The nonlinear time-varying model contains many nonlinear factors such as time-varying stiffness and clearance. Recently, with the development of nonlinear
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The influence of meshing state change of tooth surface and back of involute spur gear on meshing position
The engagement state of the tooth surface can be determined by the formula at any time during the transmission process.From
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Dynamic meshing stiffness of involute spur gear transmission system
It can be seen from the analysis that the dynamic boundary conditions α B (T) and the dynamic boundary conditions
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Processing of double gear pair large gear
(1) Big gears need to be pre-grinded after carburizing treatment, in order to eliminate heat treatment deformation before machining locating
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Mechanism analysis and improvement of gear surface corrugation order noise
1. Gear corrugation order noise and analysis A bewildering “ghost-step” noise occurs in the pre-production stage of a vehicle reducer
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Nonlinear dynamic model of lateral-torsional-pendulum coupling for involute spur gear drive
The three-dimensional solid model of involute spur gear drive is shown in the figure, and the following assumptions are used